ec2_snapshot

Used to take snapshots of EC2 instances and keep them for a user specified time period. Can be used with chron to take periodic snapshots.

Usage

get it

$ go get github.com/PermissionData/ec2_snapshot

set up aws credentials in ~/.aws/credentials

$ cat ~/.aws/credentials
[default]
aws_access_key_id = <aws_access_key_id>
aws_secret_access_key = <aws_secret_access_key>

run tool

$ ./ec2_snapshot --image-name someimage.backup --instance-id i-1234abc --time-to-save 302400

The 'time-to-save' argument specifies the amount of time (in seconds) to keep backups for. All images created before the time-to-save value will be deleted. By default, if no CLI argument is passed, the value for 'time-to-save' is 604800 seconds.

There is also an optional 'log-location' CLI argument to specify where to log results to. By default, logging is set to StdOut. Logging is kept at a minimum, logging only results and/or errors.

Both 'image-name' and 'instance-id' are required. Image name has to be a minimum of 4 characters. AMIs are saved as '.'

Filters for querying AWS is configured thru a yaml config file. By default the location is './config.yml', but can be overwritten by using the 'config-location' CLI arg. See config.yml.sample for an example.